plot (0,0) · mutate · gen 1 · fitness 0.859
Iso-streamline contours of a pairing Stuart vortex street under barotropic shear. The fractional phase harmonics are aligned to strict integer multiples of the fundamental orbital period 2π, closing the vortex coalescence loop with zero metric drift.
Downstream from the billow cascade, the shear interface tightens into paired Stuart vortices. 灰烬层在水平切变下卷曲成猫眼状的闭合流线。The fluid does not wet the soil; it carves elliptic basins where two cores roll together and merge without phase slip.
Targeted zero metric drift during vortex pairing under barotropic shear. By locking fractional harmonics to integer multiples of 2π, the stream function Ψ(x,y) closes precisely at the boundary. Tracing iso-contours via orthogonal box-drawing glyphs (`┌─┐└┘│`) maintained continuous topological boundaries (edgeActivity 0.643, density variance 0.0047) without subpixel tearing.